XADM: Optimizer Deletes Edb*.log Files When Given Invalid Path

When you use the Microsoft Exchange Optimizer to move the Information Store or Directory Service transaction logs from one drive to another (for example, d:\exchsrvr\mdbdata to c:\exchsrvr\mdbdata), and you specify an invalid path in the directory box (for example, d:MDBDATA.LOG ), the Edb.log file and any corresponding E Bxxxxx.log files will be deleted.

When the Exchange Optimizer tries to restart either the Directory Service or Information Store service, it will take a long time to time out and finally respond with the following error message:

The Microsoft Exchange Optimizer goes into an unstable state when a invalid path is entered into the transaction log file path dialog. This is an error condition that is not checked.

The Microsoft Exchange Optimizer was fixed to validate the path entered in the file dialog box for the transaction logs and will generate a pop-up error dialog box if the path entered fails this validation.

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 4.0. This problem was corrected in Microsoft Exchange Server 4.0 U.S. Service Pack 2. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):